Although I'm a regular user of SE sites, I haven't yet come across a clear page explaining how the various numbers in the profile, UI, or android app, work and what they mean. For example, on superuser s/e my profile shows with 69/1/7 next to it; on stack overflow it's 79/5. It isn't clear to me if there is any sort of "global rep", or how these numbers are calculated from other numbers shown next to individual questions and comments on those sites. On the app there's also a box on the top-right UI, with a zero in it; touching it drops down a list of questions and comments but its not clear to me what the zero represents. So I'm asking here for a helping hand to the help page I might have missed:)
The only "help" I can find on Meta SE says to hover over these to read more, an action that assume a mouse-based GUI (can't hover on a touchscreen).
At the least maybe a "?" Icon next to these or on help-> profile to explain what I'm looking at?
Any chance of a helping hand to understand better what I'm looking at and relate it back to my actual activity on questions? And perhaps improved findability of help on these?